You can find countries featured in the game under the World Map. Each country contains cities, and each city contains pieces of land (tiles) that may be owned by players and companies. Land can be purchased through Auction or privately from other players or companies. New land is added by Game Staff every now and then, and all new pieces of land are then put on Auction.
All pieces of land are subject to a daily Land Tax, which varies per country. If the land owner fails to pay this land tax for 7 days, they will lose possession of the land and it is placed on Auction again. If you do not construct anything on your piece of land within 21 days since Auction, it will be subject to a higher land tax which is 20 times the normal tax!
Land owners can ask Construction companies to build on their land. Retail Store companies will want to build a Retail Store building, while Apartment Renting companies will require the construction of an Apartment Building (up to 10 stories).